Perhaps you should try some spelling variations:
ve triet » va trien
su triet » su viet, su tien
ban hanh » ban hang
duc ban » duc tan, duc van, dua ban
cam duc » cam xuc, cao duc, pham duc
tu sach » thu sach, su sach, tu cach
hieu ve » hieu va, hieu van
va nang » van nang, da nang, cam nang
te sach » toc sach
ve cam » ve cham, ve cac, va cam
x hoi » xa hoi, o hoi, x ho

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: ((tu sach) or (te sach)) va nang x hoi. hieu ve cam duc ban hanh vi ((su triet) OR (ve triet))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((tu sach) OR (te sach)) va nang x hoi. hieu ve cam duc ban hanh vi ((su triet) OR (ve triet))*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((tu sach) or (te sach)) va nang x hoi. hieu ve cam duc ban hanh vi ((su triet) OR (ve triet))*".